Metastatic Infections

•Bacteremia

•Osteomyelitis

disease of growing bone

•Pulmonary and cardiovascular infection

Coagulase-Negative Staphylococci

•Staphylococcus epidermidis

•S. saprophyticus

Staphylococcal Lab ID & Diagnostic Tests

•Microscopic

•Lab isolation

•Coagulase positive

S. aureus

Mannitol Salts Agar

(MSA)

Staphylococcus aureus

Differential Characteristics

Catalase

2H2O2 O2 + 2H2O

Streptococci vs. Staphylococci

Catalase POS

Staphylococcus

Catalase NEG

Differential

Characteristics

S. aureus

Coagulase

Fibrinogen Fibrin